کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
675591 | 1459626 | 2007 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Effects of solid fission products forming dissolved oxide (Nd) and metallic precipitate (Ru) on the thermal conductivity of uranium base oxide fuel Effects of solid fission products forming dissolved oxide (Nd) and metallic precipitate (Ru) on the thermal conductivity of uranium base oxide fuel](/preview/png/675591.png)
The effects of solid fission products on the thermal conductivity of uranium base oxide nuclear fuel were experimentally investigated. Neodymium (Nd) and ruthenium (Ru) were added to represent the physical states of solid fission products such as ‘dissolved oxide’ and ‘metallic precipitate’, respectively. Thermal conductivity was determined on the basis of the thermal diffusivity, density and specific heat values. The effects of the additives on the thermal conductivity were quantified in the form of the thermal resistivity equation – the reciprocal of the phonon conduction equation – which was determined from the measured data. It is concluded that the thermal conductivity of the irradiated nuclear fuel is affected by both the ‘dissolved oxide’ and the ‘metallic precipitate’, however, the effects are in the opposite direction and the ‘dissolved oxide’ influences the thermal conductivity more significantly than that of the ‘metallic precipitate’.
Journal: Thermochimica Acta - Volume 455, Issues 1–2, 1 April 2007, Pages 123–128